Sofa



FIG. 1 is a front perspective view of a sofa showing my new design.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a right side view thereof.

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines illustrate portions of the sofa that form no part ofthe claimed design.

CLAIM I claim the ornamental design for a sofa, as shown and described.